September weather forecastBiwabik, MN
September
Weather in September
September, the first month of the autumn in Biwabik, is also an enjoyable month, with an average temperature fluctuating between 46.9°F (8.3°C) and 65.3°F (18.5°C).Temperature
September's onset brings a negligible change in high-temperatures, falling from a warm 74.1°F (23.4°C) in August to a comfortable 65.3°F (18.5°C). During September, Biwabik observes a consistent average nighttime temperature of 46.9°F (8.3°C).Humidity
In Biwabik, the average relative humidity in September is 78%.Rainfall
In Biwabik, Minnesota, in September, during 10.6 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In Biwabik, Minnesota, during the entire year, the rain falls for 95.6 days and collects up to 11.81" (300mm) of precipitation.Snowfall
June through September are months without snowfall in Biwabik.Daylight
The average length of the day in September is 12h and 33min.On the first day of September in Biwabik, sunrise is at 6:29 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:50 pm CDT.
Sunshine
The average sunshine in September is 7.9h.UV index
In Biwabik, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a daily UV index of 3 turns into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Biwabik, MN
- Average high temperature in September: 65.3°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (14.4°F).
- Average low temperature in September: 46.9°F
The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is January (-0.8°F).
Average pressure in September
Biwabik, MN
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Biwabik, MN
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in September
Biwabik, MN
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Biwabik, MN
- Average rainfall in September: 0.98"
The wettest months (with the highest rainfall) are June and July (1.73").
The driest month (with the least rainfall) is February (0.35").
Average rainfall days in September
Biwabik, MN
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (1.2 days).
Average snowfall in September
Biwabik, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Biwabik, MN
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Biwabik, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in September
Biwabik, MN
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is June (13.6 days).
Average UV index in September
Biwabik, MN
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Biwabik, MN
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in September
Biwabik, MN
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).





